hey,
iv just got this problem today.iv changed my wallpaper by desktop settings.it changed.but then i tried to replace my original background.but i cant do it!

i formated my internal memory,restored factory settings... but nothing changed... =(

i cant even change it by "set as wallpaper"

please help me... im going to re-install the phone software by nokia sof.updater...

shall i do it...?